English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Background  The Asian tiger mosquito,  Aedes albopictus , is one of the 100 worst invasive species in the world and the vector for several arboviruses including dengue, Zika and chikungunya viruses. Understanding the population spatial genetic structure, migration, and gene flow of vector species is critical to effectively preventing and controlling vector-borne diseases. Little is known about the population structure and genetic differentiation of native  Ae. albopictus  in China. The aim of this study was to examine the patterns of the spatial genetic structures of native  Ae. albopictus  populations, and their relationship to dengue incidence, on a large geographical scale.    Methods  During 2016–2018, adult female  Ae. albopictus  mosquitoes were collected by human landing catch (HLC) or human-bait sweep-net collections in 34 localities across China. Thirteen microsatellite markers were used to examine the patterns of genetic diversity, population structure, and gene flow among native  Ae. albopictus  populations. The correlation between population genetic indices and dengue incidence was also examined.    Results  A total of 153 distinct alleles were identified at the 13 microsatellite loci in the tested populations. All loci were polymorphic, with the number of distinct alleles ranging from eight to sixteen. Genetic parameters such as PIC, heterozygosity, allelic richness and fixation index ( F  ST ) revealed highly polymorphic markers, high genetic diversity, and low population genetic differentiation. In addition, Bayesian analysis of population structure showed two distinct genetic groups in southern-western and eastern-central-northern China. The Mantel test indicated a positive correlation between genetic distance and geographical distance ( R  2  = 0.245,  P  = 0.01). STRUCTURE analysis, PCoA and GLS interpolation analysis indicated that  Ae. albopictus  populations in China were regionally clustered. Gene flow and relatedness estimates were generally high between populations. We observed no correlation between population genetic indices of microsatellite loci in  Ae. albopictus  populations and dengue incidence.    Conclusion  Strong gene flow probably assisted by human activities inhibited population differentiation and promoted genetic diversity among populations of  Ae. albopictus . This may represent a potential risk of rapid spread of mosquito-borne diseases. The spatial genetic structure, coupled with the association between genetic indices and dengue incidence, may have important implications for understanding the epidemiology, prevention, and control of vector-borne diseases.

Patterns of spatial genetic structures in Aedes albopictus (Diptera: Culicidae) populations in China